Looking for someone to help

Hi. I am trying to use Survival Games on my server. The default rank can not open chest. It says, "You are not permitted to interact with CHEST" I find out how to change this. I have tried many different permissions. How can I allow players to open chests? BTW, I am using GroupManagers. Please let me know.


Thanks


Also it says the same for sign... how do I allow people to use signs?